基于3414试验的小麦向日葵间作施肥模型研究  

Study on Fertilization Model in the Intercropping System of Wheat and Sunflowers Based on 3414 Test

作　　者：刘德平[1] 杨树青[1] 史海滨[1] 兰有廷 王淑梅 李凤军[1] 郭富强[1] 

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018 [2]呼伦贝尔市水利水电勘测设计院,内蒙古海拉尔021000 [3]呼伦贝尔市兴水公司,内蒙古海拉尔021000

出　　处：《灌溉排水学报》2011年第2期127-131,共5页Journal of Irrigation and Drainage

摘　　要：通过在内蒙河套灌区进行的3414小麦向日葵间作试验,分别建立一元二次、二元二次、三元二次、直线加平台施肥模型,分析不同模型,确定当地最佳施肥量。结果显示当小麦与向日葵种植面积比值为1.5∶1时,小麦最佳施肥量:氮为69.43 kg/hm2,磷为38.89 kg/hm2,钾为32.17 kg/hm2;向日葵最佳施肥量:氮为78.77kg/hm2,磷为42.54 kg/hm2,钾为34.05 kg/hm2。试验得出的最佳施肥量与当地习惯施肥量相比,农田氮施量减少26.62%,磷施量减少31.03%。Through research in the intercropping system of wheat and sunflowers based on 3414 test in Hetao irrigation district of inner Mongolia,and it is established respectively one element quadratic model,two element quadratic model,three element quadratic model,linear plus platform,analyzing different models to determine the best amount of the crop local fertilizer.The results showed that the planting area ratio of the wheat and the sunflowers is 1.5∶1,the best amount of the wheat fertilizer：N 69.43 kg/hm2,P 38.89 kg/hm2,K 32.17 kg/hm2;the best amount of the sunflowers fertilizer：N 78.77 kg/hm2,P 42.54 kg/hm2,K 34.05 kg/hm2.the best amount of the crop fertilizer compared with the amount of the local customary fertilizer,the amount of N fertilize whittle down 26.62% and the amount of P fertilize whittle down 31.03% of per hectare platform.

关 键 词：肥料互作效应 直线加平台模型 三元二次模型 二元二次模型 一元二次模型 

分 类 号：S512.1[农业科学—作物学] S565.5